Speaker
Description
A.T. D’yachenko$^{1,2}$, I. A. Mitropolsky$^{2}$
$^{1}$ Emperor Alexander I Petersburg State Transport University, St. Petersburg, Russia;
$^{2}$ B.P. Konstantinov Petersburg Nuclear Physics, Institute, National Research Center “Kurchatov Institute”, Gatchina, Russia
E-mail: dyachenko_a@mail.ru
Developing the hydrodynamic approach in describing collisions of heavy ions of intermediate energies [1-6], we proposed to solve the kinetic equation together with the solution of the equations of hydrodynamics [2,3]. This made it possible to successfully describe the double differential cross sections for the emission of protons and pions in collisions of medium-energy heavy ions [2, 3]. We also managed to completely describe the spectra of protons, pions, and photons for the collision of carbon nuclei with a beryllium target in the energy range of 0.3–3.2 GeV per nucleon, obtained in the ITEP experiments [7, 8]. When describing these spectra, the correction for the microcanonical distribution [4, 5] was taken into account, and the contribution of the fragmentation process was also taken into account for the proton yields [6].
The contribution of the effects of short-range correlations SRC, which has recently received much attention [9], was also studied by us. As a result, it turned out that these effects are included in our approach, since we successfully describe the experimental data on the spectra of hard photons [10], which are described in [9] with the addition of a high-momentum component. Our approach is applicable to collisions of both light and heavy nuclei, which can be seen from a comparison of the description of the proton distributions in transverse momentum in the Au+Au reaction at an energy of 1.48 GeV per nucleon with experimental data and other theoretical approaches based on solving the Boltzmann equation, the quantum model molecular dynamics, etc. [11]. This can be extended to the energy range of the reptile complex NICA located at JINR (Dubna).
- A. T. D’yachenko, K.A. Gridnev, and W. Greiner, J. Phys. G 40, 085101 (2013).
- A. T. D’yachenko, I. A. Mitropolsky, Phys. Atom. Nucl. 82, 1641 (2019).
- A. T. D’yachenko, I. A. Mitropolsky, Bull. Russ. Acad. Sci.: Phys. 84, 391(2020).
- A. T. D’yachenko, I. A. Mitropolsky, EPJ Web Conf. 204, 03018 (2019).
- A. T. D’yachenko, I. A. Mitropolsky, Phys. Atom.Nucl. 83, 558 (2020).
- A. T. D’yachenko. I. A. Mitropolsky , Bull. Russ. Acad. Sci.: Phys. 85, 554(2021).
- B.M. Abramov et al., Phys. Atom. Nucl. 78, 373 (2015).
- I.G. Alekseev et al., Phys. Atom. Nucl. 78, 936 (2015).
- W.M. Guo, B.A. Li, G.C. Yong, Phys.Rev.C 104,034603 (2021).
- J. Stevenson et al., Phys. Rev. Lett. 57, 555 (1986).
- E. E. Kolomeitsev et al. J. Phys. G 31 741(2005).
| Section | 3. Intermediate and high energies, heavy ion collisions |
|---|---|
| The speaker is a student or young scientist | No |
